Respuesta :

Answer:

56

Step-by-step explanation:

the length of the missing side is 7

so 7 x 8 = 56

To find the missing side:

You must add 8 + 8 = 16

Subtract 16 from the total perimeter = 14.

Divide 14 by 2 = 7 you divide by two since there are two missing lengths and when you add them they have to equal to 14.